[TUHS] File system salvager, "salv"

Clem Cole clemc at ccc.com
Sat Oct 19 00:28:34 AEST 2019


On Fri, Oct 18, 2019 at 2:41 AM Lars Brinkhoff <lars at nocrew.org> wrote:

> Warren Toomey wrote:
> > 11-56-91.pdf  user-mode programs: pd, psych, rm, rn, roff, salv, sh
> My attention is drawn to "salv".
> Clem Cole wrote in 2016:
> > The original FS tools for UNIX icheck/dcheck/ncheck were very crude.
> > TSS and MTS (used a similar/same FS format) and and had a similar
> > program in the key of fsck that Ted was familiar (as did a number of
> > DEC systems for that matter).  Ted wrote the original version of
> > premordial fsck for v6 at UMich (maybe v5 - Joy probably would know
> > what the version of UNIX was there then).  Ted took "pre-fsck" to Bell
> > Lab the summer between Mich and CMU. [...]
> https://minnie.tuhs.org/Archive/Documentation/TUHS/Mail_list/2016-April.txt
> There are these V2 and V3 man pages.
> https://www.tuhs.org/Archive/Distributions/Research/Dennis_v2/v2man.pdf
> https://www.tuhs.org/cgi-bin/utree.pl?file=V3/man/man8/salv.8
> I see a V3 man page for dcheck, but nothing for icheck until V6.
> So it appears before fsck, and before icheck etc, there was salv, the
> file system salvager tool.  Some quick searching reveals that CTSS,
> Multics, and ITS all also used the term salv and/or salvager for the
> corresponding program, so there's ample precedent.
Sent from a handheld expect more typos than usual
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